Watson-Marlow Bredel 10 User Manual
Page 45
TROUBLESHOOTING
45
Vibration of the pump
and pipework.
Suction and discharge
lines are not secured cor-
rectly.
Check and secure pipe-
work.
High pump speed with long
suction and discharge lines
or high relative density or a
combination of these fac-
tors.
Reduce pump speed.
Reduce the line lengths on
both suction and dis-
charge where possible.
Consult your Bredel repre-
sentative for a recommen-
dation.
Too narrow diameter of
suction and/or discharge
line.
Increase the diameter of
the suction/discharge lines.
Short hose life.
Chemical attack of the
hose.
Check the compatibility of
the hose material with the
product to be pumped.
Consult your Bredel repre-
sentative for correct hose
selection.
High pump speed.
Reduce pump speed.
High discharge pressures.
The hose life is reduced
significantly when the hose
has to suffer high working
pressures. The higher the
working pressure, the more
the hose life is reduced.
The maximum working
pressure depends on the
hose type. Refer to
Check that the discharge
line is not blocked, the
shut-off valves are fully
opened and the pressure
relief valve functions prop-
erly (if present in the dis-
charge line).
High product temperature.
Consult your Bredel repre-
sentative for correct hose
selection.
High pulsations.
Restructure the discharge
and inlet conditions.
Problem
Possible cause
Correction